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package web.service;

import java.util.ArrayList;
import java.util.List;
import web.enity.Book;
import web.enity.Cart;
import web.enity.Item;
import web.enity.OrderDital;

/**
 *
 * @author 10592
 */
public interface OrderService {
    /**
     * 下订单
     * @param cart
     * @return 
     */
    boolean placeOrder(Cart cart);
    List<OrderDital> quaryItem(String userName);
}
